<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>

        .one,.two,.three{
            width: 100px;
            height:100px;
           
        }
        .one{
            width: 100px;
            height: 100px;
            background: red;
            float:right;
        }
        .two{
            background: green;

        }
        .three{
            background: pink;
        }


    </style>
</head>
<body>
    <div class="one"></div>
    <div class="two"></div>
    <div class="three"></div>
  
</body>
</html>